export function uuidv4() {
    return ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
        (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
    );
}
export function showSpinner() {
    document.getElementById('spinner').classList.add('spin');
}
export function hideSpinner() {
    document.getElementById('spinner').classList.remove('spin');
}
